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      Description

      See also https://github.com/ray-project/ray/issues/2447

      How to reproduce:

      • Start the Ubuntu Deep Learning AMI (version 12.0) on EC2
      • Create a new env with conda create -y -n breaking-env python=3.5
      • Install pytorch with source activate breaking-env && conda install pytorch torchvision cuda91 -c pytorch

       

      Python 3.5.5 |Anaconda, Inc.| (default, May 13 2018, 21:12:35)
      
      [GCC 7.2.0] on linux
      
      Type "help", "copyright", "credits" or "license" for more information.
      
      >>> import pyarrow
      
      >>> import torch
      
      >>> torch.nn.Conv2d(64, 2, kernel_size=3, stride=1, padding=1, bias=False).cuda()
      
      Segmentation fault (core dumped)

       

      Backtrace:

      >>> torch.nn.Conv2d(64, 2, kernel_size=3, stride=1, padding=1, bias=False).cuda()
      
      
      
      Program received signal SIGSEGV, Segmentation fault.
      
      0x0000000000000000 in ?? ()
      
      (gdb) bt
      
      #0  0x0000000000000000 in ?? ()
      
      #1  0x00007ffff7bc8a99 in __pthread_once_slow (once_control=0x7fffdb791e50 <at::globalContext()::globalContext_+400>, init_routine=0x7fffe46aafe1 <std::__once_proxy()>)
      
          at pthread_once.c:116
      
      #2  0x00007fffda95c302 in at::Type::toBackend(at::Backend) const () from /home/ubuntu/anaconda3/envs/breaking-env2/lib/python3.5/site-packages/torch/lib/libcaffe2.so
      
      #3  0x00007fffdc59b231 in torch::autograd::VariableType::toBackend (this=<optimized out>, b=<optimized out>) at torch/csrc/autograd/generated/VariableType.cpp:145
      
      #4  0x00007fffdc8dbe8a in torch::autograd::THPVariable_cuda (self=0x7ffff6dbff78, args=0x7ffff6daf828, kwargs=0x0) at torch/csrc/autograd/generated/python_variable_methods.cpp:333
      
      #5  0x000055555569f4e8 in PyCFunction_Call ()
      
      #6  0x00005555556f67cc in PyEval_EvalFrameEx ()
      
      #7  0x00005555556fbe08 in PyEval_EvalFrameEx ()
      
      #8  0x00005555556f6e90 in PyEval_EvalFrameEx ()
      
      #9  0x00005555556fbe08 in PyEval_EvalFrameEx ()
      
      #10 0x000055555570103d in PyEval_EvalCodeEx ()
      
      #11 0x0000555555701f5c in PyEval_EvalCode ()
      
      #12 0x000055555575e454 in run_mod ()
      
      #13 0x000055555562ab5e in PyRun_InteractiveOneObject ()
      
      #14 0x000055555562ad01 in PyRun_InteractiveLoopFlags ()
      
      #15 0x000055555562ad62 in PyRun_AnyFileExFlags.cold.2784 ()
      
      #16 0x000055555562b080 in Py_Main.cold.2785 ()
      
      #17 0x000055555562b871 in main ()

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              • Assignee:
                pcmoritz Philipp Moritz
                Reporter:
                pcmoritz Philipp Moritz
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